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Message-ID: <20231130003951.GA1394392@ziepe.ca>
Date: Wed, 29 Nov 2023 20:39:51 -0400
From: Jason Gunthorpe <jgg@...pe.ca>
To: Robin Murphy <robin.murphy@....com>
Cc: Joerg Roedel <joro@...tes.org>, Christoph Hellwig <hch@....de>,
Vineet Gupta <vgupta@...nel.org>,
Russell King <linux@...linux.org.uk>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>,
Huacai Chen <chenhuacai@...nel.org>,
WANG Xuerui <kernel@...0n.name>,
Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Hanjun Guo <guohanjun@...wei.com>,
Sudeep Holla <sudeep.holla@....com>,
"K. Y. Srinivasan" <kys@...rosoft.com>,
Haiyang Zhang <haiyangz@...rosoft.com>,
Wei Liu <wei.liu@...nel.org>, Dexuan Cui <decui@...rosoft.com>,
Suravee Suthikulpanit <suravee.suthikulpanit@....com>,
David Woodhouse <dwmw2@...radead.org>,
Lu Baolu <baolu.lu@...ux.intel.com>,
Niklas Schnelle <schnelle@...ux.ibm.com>,
Matthew Rosato <mjrosato@...ux.ibm.com>,
Gerald Schaefer <gerald.schaefer@...ux.ibm.com>,
Jean-Philippe Brucker <jean-philippe@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Frank Rowand <frowand.list@...il.com>,
Marek Szyprowski <m.szyprowski@...sung.com>,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-acpi@...r.kernel.org, iommu@...ts.linux.dev,
devicetree@...r.kernel.org
Subject: Re: [PATCH 3/7] ACPI/IORT: Handle memory address size limits as
limits
On Wed, Nov 29, 2023 at 05:43:00PM +0000, Robin Murphy wrote:
> Return the Root Complex/Named Component memory address size limit as an
> inclusive limit value, rather than an exclusive size. This saves us
> having to special-case 64-bit overflow, and simplifies our caller too.
>
> Signed-off-by: Robin Murphy <robin.murphy@....com>
> ---
> drivers/acpi/arm64/dma.c | 9 +++------
> drivers/acpi/arm64/iort.c | 18 ++++++++----------
> include/linux/acpi_iort.h | 4 ++--
> 3 files changed, 13 insertions(+), 18 deletions(-)
Reviewed-by: Jason Gunthorpe <jgg@...dia.com>
Jason
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